SueJack was sort of right about Anthony, that he was kind of a bad guy. Sue did not like him, especially one who talked back to Superman. She watched as he bullied on Connor, the two geniuses of the group, feeling powerless to stop the bullying.
So she did what she thought of on the spot.
She clapped outwards at them, a loud clap that created a shockwave powered by her ears that shoved everyone away a few feet, hoping to stop the fight. The shockwave must have been heard through the entire building.
Start at 6:34She mouthed “sorry” to everyone, but stared Anthony down, in reproach to his attitude.